Boiler.



J. F. DORNFELD.

B0!LER.

APPLICATlON FILED ocrfu, Isle.

Patented Oct. 29, 1918,

2 SHEETSSHEET I i am J. F. DORNFELD.

BGILER.

APPucAUoN FILED car. 14, I9l6.

2 SHEETS-SHEET 2- ii I 3 I P W g JM/ aonnr. no'mxirntn, orGHiCAGQ'ILLINOIS.

BOILER.

Specification of Letters Patent.

Patented @013. 29,191.

Application filed October 14, 1916. Serial No. 125,560.

To all whom it may concern:

-Be it known that 1, JOHN F. DORNFELD, a citizen of the United States,residing at Chicago, in the county of Cook and State'of- Illinois, have.invented certain new and useful Improvements. in Boilers, of which thefollowing is a specification. y p I i This invention relatesparticularly, although not exclusively to small boilers adapted for usein connection with isolated electric lighting plants and other instal-'comprisinga Water container formed of cast metal' and providing arelatively large amount. of heatingsurface. 7

A further object is to provide a water container and water circulatingsystem which shall be particularlyadapted to the use of fluid fuel. V Inthe accompanying drawings, Figure 1 is a vertical centralisectional viewof a boiler embodying the features of my invention. Fig.2 is ahorizontal vview of the primary water container showingalso in sectionthe casin that inclosessaid water container and two uid fuel nozzles.Fig; 3 is a sectional view-taken in the plane of dotted line 33 of Fig.2.. Fig. 4 is section on dotted line H of Fig. 2., Fig. 51s a sectionalview of the header and pipe connections from the annularWatercontainers.

The boilermay include. an inclosing casing of any suitableform;andconstruction, as, for example, the vertical casingl shown in thedrawings The upper portion 1'" of the casing may be made removable.:trorn the lower portion in any. suitable manner. In the lower portionof the casing 1 is a horizontal partition 2 which with the adjacentportionsof'. the casing 1 constitute acircular casing that incloses whatmaybe termed the primarywatercontainer 3. As shown in Fig. 2, the Watercontainer 3 partakes of the general-formof the letter Sand is arrangedin horizontal position. Itis divided bya' horizontal partition 1 intoanupper and a lower water chamber, which chambers communicate with eachother by means of ports 5 extending through the partition 1 at the endsof the container. Said container has a central inlet 0 in itslower sideand a centraloutlet Yin its upper side. If desired, other suitablebaffle means may be interposed between the inlet and the outlet insteadof the partition 4. The inlet 6 is connected by means of a short pipe ornipple 8 with a settling chamber 9 located directly beneath the primarywater container 3. The settling chamber 9 has a blow-ofii cock 9.

A tube 10 is connected to the primary water container 3 in alinementwith and in communication with the outlet 7. The tube 10 supportsandcommunicates with a main water container comprising a plurality ofannular concentric portions or sections arranged one inside another. Thecentral an-- nular section is designated by the number 11 and it is ormay bejcast integral with the tube 10, said tube extending centrallythrough the section 11. The section 11 is spaced away from the tube 10so as to form anannular passage 12 for the products of combustion. Thelower end of the section 11 communicates with the tube 10 through one ormore tubes or passages 13.

At its upperend the central section 11 is provided with an annularvoutwardly extendmg flange 14: which underlies and supports an annularinwardly extending flange 15 upon the upper end of the annular section16 of the main water a container. The flanges 14 and 15 may, if desired,be secured together in any suitable way, as, for example, by means ofscrewsl'l'. The section 11 and 16 are spaced apart to form. an annularpassage 18 for the products of combustion.

"The annular section 16 is provided at its upper end with an annularoutwardly eX tending flange that underl es and supports an inwardlyextending annular flange upon the annular section 19 of the main waterThe.

provide a passage 22 for the products of combustion. The annularpassages 12, 18, 20 and 22 communicate with each other at their upperends through the medium of a suitable number of short tubes or pas heouter wall ofthe section 21 is extended above the other sections andisattached to a dome 24 that defines a steam and water chamber 25 abovethe annular concentric sections of the main water container. A steampipe 26 is connected to said chamber. The tube may, as herein shown, ex-

tend above the annular sections 11, 16, and

'19 so as to conduct water to the steam and Water chamber 25. Ifdesired, the dome 24 may be'connected to the upper end of the tube 10 bymeans of a screw 27. The annular water-containing sections 11, 16, 19

and 21 communicate at their upper ends with the steam and water chamber25,

The partition 2 has a central opening 28 to permit products ofcombustion to pass upwardly from the chamber that incloses the primarywater container 3. The W2L1361C( )11- tainingsection 16 extends belowthe sectlon 11 and relatively close to the partition 2 so as to surroundthe opening 28 andcompel the products of combustion to pass upwardlythrough the annular passages 12 and 18. ll desired, a ring 29 ofanysuitable material may be looselyset upon the partition 2 di- 'rectlybeneath the water-containing section The annular passages 20 and 22conununlcate with each other at their lower ends.

After going through said passages the products of combustion passupwardly around the outermost.watencontaining section 21 to a chamber 30above the main water con tainer and thence through an opening 31 into 'achamber 32 and thence to an outlet The lower ends of the annularwater-com taining sections 16, 19 and 21 are connected to the inlet 6ofthe primary water container. Herein I have shownpipes 34c, 35

chamber 9.

and 36 leading from the sections 16, 19 and 21, respectively, andconnectedto a header 37 which header is connected to a tube 38 which inturn is connected to the settling The header 37 is provided with acleaning opening39 in alinement with the tube 38, said opening beingnormally closed by means of a screw plug 40.

Water may besupplied to theboiler in any suitable manner. V Herein Ihave shown .a supply pipe made in twosections 41 and 12, said sectionsbeing screwed into the wall of'the settling chamber 9 in communicationwith each other. The section 4:2 extends within the tube 38 and isprovided with a fitting 43 that directs the Water into the tube 38 inthe direction which water is circulating through said tube. The watersupply may be of any suitable character. Herein is shown a pump 14arranged to discharge Water into the pipe 41.

If desired, a suitable form of feed-water heater may be employed. Hereinis shown a water container 45 located in thechamber. 32 andprovided withan inlet pipe'tfiand an outlet pipe 1 .7.: Said outlet pipe is connectedto the intake of the pump 4-1 by means of a pipe 48. i

Any preferred means of supplying fuel may be employed. Herein areshowntwo nozzles 49 (Fig. 2) located in a horizontal plane and extending intothe spaces between.

posite side of the nozzle'is closed and is pro-'- vided with upwardlyand downwardly extending flanges 50 which extend into'contact with theupper and-lower wallso'f 'the' chamber that incloses the primary watercontainer, thus preventing the 1n e'cted materials from being dischargedat that side of the nozzle and thus preventing one 1102- Z10 fromblowing out the flame issuing from the other nozzle.-

In practice,- water is suppliedto the pipe 113 and forced into theboiler by means of the pump 44:; The fuel maybe crude oil, distillate orany other 'suitable kindof liquid or fluid fuel. When oil is used itmaybe carried through the nozzles 49by means of jets of steam orcompressed air.

Sediment: which collects in the chamber 9 and ad acent portionslof theboiler may be blown out through the cock. 9 The boiler is of suchconstruction that, when de sired, it may be readilyfltaken apart forcleaning or replacement. -The upper section 1 of the casing 1 mayberemoved to provide access vto the main water container. After the dome24; has been" taken on,

brushes or other cleaning lmpleinents may be inserted into the upperends of theanmn lar water containers 16, 19'and 21, and scale andsediment thus removed.

I claim as my invention:

1. A boiler having an S-shaped water container arranged in horizontalposition and having an inlet and an outlet, and fluid-fuel nozzlesprojecting horizontally intothe spaces formedbetween the end portionsand the central portioacf .the sshaped container.

2 A boiler having, in combination, a water container comprising aplurality of annular concentric portions communicating with each otherat their upper ends, a header below the container, means connecting thelower ends of each of said portions of the container with said header, acentral conducting member communicating with the lower end of one of theannular portions and having a sediment chamber in its lower end, and ap'pe connecting said conducting member with the header. a

3. A boiler having, in combination, a water container comprising aplurality of annular concentric portions, said portions communicating attheir upper ends, means connecting the lower ends of said concentricportions, water-supply means communicating with said connecting means,and a settling chamber communicating with said con necting means and innear proximity to said water-supply means.

4. A boiler having, in combination, a

casing, a partition having a central openmg providing two communicatingchambers within said casing, the water container in one of said chamberscomprising two an nularconcentric portions communicating at their upperends, said concentric portions being spaced apart to provide an annularpassage for products of combustion, a central, vertical tubecommunicating with the lower endof the central annular portion, aprimary water container directly below the other water container and inthe other chamber, said primary container having an outlet whichcommunicates with the lower end of the verticletube, means forming apassage connecting the lower end of the outer annular portion with theinlet of the primary water container, means for heating said primarycontainer, said heating means discharging products of combustion throughsaid central opening into said annular chamber, a water supply pipecommunicating with the above mentioned passage leading to the inlet forthe primary water. container, and a sediment chamber connected to thelast mentioned passage.

5. A boiler l1aving,in combination, a casing a water container thereincomprising two annular concentric portions communicating at their upperends with each other, said concentric portions being spaced apart toprovide an annular passage for products of. V combustion, a partltionw1th1n the caslng having a central opening, heating means dis. chargingproducts of combustion through said central opening into thespaceadjacent to the central annular portion of the water container, theother annularportion being extended below the central annular portion,

and water-conducting means connecting the lower ends of sald annularportlons includ- 6. A boiler having, in combination, a cas ing, a watercontainer therein comprising two annular concentric portionscommunicating at their upper ends with each other, said concentricportions being spaced apart to provide an annular passage for productsof combustion, a partition within the casing having a central opening,heating means discharging products of combustion through said centralopening into the space adjacent to the central annular portion of theWater container, the other annular portion being extended below thecentral annular portion, and water-conducting means connecting the lowerends of said annular portion.

7. A boiler having, in combination, a casing, a water container thereincomprising two annular concentric portions communicating with eachother, water and steam connections for said container, said concentricportions being spaced apart to provide an annular passagev for theproducts of combustion, a partition in said casing beneath saidcontainer and having a central opening, heating meansdischargingproducts of combustion through said central opening into the spaceadjacent the cen tral annular portion of the water container, the otherannular portion being extended below the central annular portion, and anoutlet for the products of combustion around the outermost annularcontainer.

8. A boiler having, in combination, a casing, a water container thereincomprising two annular concentric portions communicating with eachother, water and steam connections for said containensaid concentricportions being spaced apart to provide an annular passage for theproducts of combustion, a partition in said casing beneath saidcontainer and having a' central opening, heating means dischargingproducts of combustion through said central opening into the spaceadjacent the central annular portion of the water container, the otherannular portion being extended below the central annular portion, and asealing ring be tween the other annular portion and the partition. v

9. A boiler having, in combination, a casing, a water container thereincomprising a plurality of annular concentric portions communicating witheach other, means for supplying water to the centralannular por tion, asteam outlet for the water container, said concentric portions beingspaced apart to provide annular passages for products of com-' bustion,the upper portionsof said passages being connected together, a partitionin said casing beneath said water container having the central annularportion ofthe water .container,and an outlet for the product'sof I I: r,A, combustion within thefcasing and; around the outermost annularportion of the water container. i

10. A boiler having, in combinatioma water container comprising .aplurality, of ani'uilarconcentric sections, ,each having at itsfupperend an annular outwardlyextending; flange that underlies an annularlinwardly extending flange on the next outer section,andmeans forsupporting the central annularsection. n

l1 VA boiler having an S-shaped water container arranged, in horizontalposition, said container having a horizontal partition dividing the,container ,into an upper and a lower ,chamber, ,the lower chamber havinga central; inlet and the upper chamber having a central outlet, saidpartition having-(ports whiclrconnect the twochambers near the endsofthe Sn-shaped container 12,:A boiler, having an S-shaped water containerarranged in horizontal position, said container having a horizontalpartition dividing,thercontainer into an upper and a lower chamber, thelower chamber having a centraluinlct and the upper chamber having acentral outlet, said partition having ports which connect the twochambers near the cndsofithe S-shaped container, and fluidi'uelnozzlesprojecting horizontally into the spaces formedbetween the endportions and central portion of the S-shaped container.

13. .A. boilerwhaving an S-shaped water container; arranged inhorizontal position and having 'a central inlet and a central outlet,bafile means interposed between said inlet and said outlet, andfluid-fuel nozzles projecting horizontally into the spaces formedbetween the end portions and central portionof the S-shaped container.

14. A'boiler having an S-shaped water container arranged in horizontalposition and having an inlet and an outlet, fluidfuel. nozzlesprojecting horizontally into the spaces formed between theend portionsand central portion of the S-shaped container, and a circular casinginclosing the container,

said nozzles extending in opposite directions and, serving to direct thefuel and products of combustion'toward the periphery of sai casing;

15. A boiler having in combination, a primary water container arrangedin hori zontal. position and having two sections communicating with eachother, one of said sectionsjhaving an inlet and the other sec tionhaving an outlet, a. secondary container above saidv primary containerand comprising, a plurality of annular concentric portionscommunicatingwith the inlet. and out let ofthe primary, container, andmeans for heating said containers;

16., A boiler}. having, in combination a. ,casing, ,a;.pr1mary.container arranged .111-

horizontal position and having an inlet and municating with the lowerend or the central annular portion, and a horizontally disposed primaryVftbhlh container 1 below the mentioned container and having anoutletwhich communicates with thelower endof said vertical. tube and an inletwhich communicates with the-lower end of the other annularportion;to:coniplete a circuit.

18. A bOilGD having, in combination, a

*ater container comprising -a plurality of upright annular concentricportions having open upper ends, means providing-a'steam and water spaceabove said annular por tions, a central vertical tube communicating lwith the lowcrend of the centralannular portion'and arranged todischarge water into saidv water and steam space, and means connectingthe other annular portion with the lower portion of said tube tocomplete a circuit. 1 r

19. A a boiler having, water container comprisinga plurality of uprightannular concentric portions communicating; with each other, means forsupplying water to the central annular portion, a steam outlet'forthewa-tercontainer, said concentric portions being spaced 1 apart toprovide annular passages for products of combustion and, the upperportions of said passages-being closed, heating means dischargingproducts ofcombustion into the space adjacentto-the centralannular-"portion of the water container-,and anoutl'et for the. productsofv combustion around the lower endof the outermost annular'portlon ofthe water-container, r

9-0. A boiler having, in combination, a-

water containercomprising inner, outer and intermediate annular 1concentric portions, said portions communicating 'with each incombination, a

other at their upper ends, a central vertical tube communicating withthe inner-annular portion, and means connecting the lower end or theouter annular portion with the lower portioirof said tube to completeacircuit.

21. A- boiler having, 'in "combina-ti'on," a water containerC0mpr1S111gf@lxplul'itlliWDf upright annular concentricportions, saidportions communicating with each' other at-- their upper ends, a centralvertical tube communicating with the lower end of the central annularportion, and means connecting the lower end of the other annular portionwith the lower portion of said tube, said means having a clean-outopening therein.

22. A boiler having, in combination, a water container comprising aplurality of upright annular concentric portions, means forming a steamchamber with which the upper ends of said portions communicate and meansextending below the container and including a primary water containerconnecting the central annular portion with the lower end of the otherannular portion.

23. A boiler having, in combination, a

water container comprising a plurality of annular concentric portionscommunicating with each other, a Water and steam space in the upperportion of said container, said concentric portions being spaced apartto provide annular passages for products of combustion, means forclosing the upper ends of said passages, heating means dischargingproducts of combustion into the space adjacent to the central annularportlon of the water container, and an outlet for the products ofcombustion around the lower end of the outermost annular portion of thewater container.

24:. A boiler having, in combination, a

water container comprising a plurality ofupright annular concentricportions, said portions communicating with each other at their upperends, and means extending below the water container and connecting thelower end of the central annular portion with the lower end of the otherannular portion, said means having a clean-out opening therein.

25. A boiler having, in combination, a water container comprising twoupright annular concentric portions, means forming a steam and waterspace communicating with the upper ends of said concentric portions,said concentric portions being spaced apart to provide an annularpassage for products of combustion, a central vertical tubecommunicating with the lower end of the central annular portion and alsoarranged to conduct water into said water and steam space, a primarywater container below the first mentioned container and having an outletwhich communicates with the lower end of the vertical tube, means formina passage connecting the lower end of t e outer Gopies of this patentmay be obtained for annular portion with the inlet of the primary watercontainer, means for heating said primary water container, said heatingmeans discharging products of combustion into said annular passage, anda water supply pipe communicating with the above mentioned passageleading to the inlet of the primary water container.

26. A boiler having, in combination, a water container comprising twoannular concentric portions, means forming a steam and water spacecommunicating with said annular concentric portions, said concentricportions being spaced apart to provide an annular passage for theproducts of combustion, means for closing the upper ends of saidpassage, a central vertical tube communicating with the central annularportion and arranged to conduct water into said water and steam space, aprimary water container below the first mentioned container and havingan outlet which communicates with the vertical tube and an inlet, meansforming a passage connecting the outer annular portion with the inlet ofthe primary water container, means for heating said primary watercontainer, said heating means discharging products of combustion intosaid annular passage, and a water su ply pipe arranged to discharge intothe a ove mentioned passage leading to the inlet of the primary watercontainer.

27. A boiler having, in combination, a water container comprising twoupright annular concentric portions communicating at their upper endswith each other, said concentric portions being spaced apart to providean annular passage for products of combustion, means for closing theupper end of said passage. a central vertical tube communicating withthe lower end of the central annular portion, a horizontally-disposedprimary water container below the first mentioned container and havingan outlet which communicates with the lower end of the vertical tube andan inlet which communicates with the lower end of the outer annularportion, and means for heating said primary water container, saidheating means discharging products of combustion into said annularpassage to heat the other water container.

In testimony whereof, I have hereunto set my hand.

JOHN F. DORNFELD five cents each, by addressing the "Commissioner orretenta,

Washington, D. 0.

